# Triangular Lake — Bouldering guidebook

> Bouldering guidebook for Lietlahti and Triangular Lake with offline maps and search filters. (iPhone/iPad app by Mikhail Barinov.)

- Source: https://appshunter.io/ios/app/triangular-lake/id910228492 (this page in markdown: same URL + `.md`)
- Developer: [Mikhail Barinov](https://appshunter.io/developer/910228495)
- Category: Sports, Travel
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 74 MB
- Languages: American English, Russian
- Released: 2014-08-27
- Data updated: 2026-06-03
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/triangular-lake/id910228492/reviews.md

## What is Triangular Lake?

Triangular Lake is a mobile guidebook for bouldering locations Lietlahti and Triangular Lake.

Being one of the largest bouldering areas in Russia, Triangular Lake is rich in history. As for Lietlahti, it is a newly found area located 3 km away from Triangular Lake.

The main objective of the guidebook is to simplify the search of problems, boulders and sectors making it easy and comprehensible.

The information in the guidebook is as follows:
- sectors (boulders/walls) are joined in areas;
- photos depict the lines of the problems;
- in each problem description there is information on its grade, danger level, desired number of crash pads as well as some spotting tips. The guidebook also provides information about starting position and the line of each bouldering problem.

To simplify the selection of problems, search filters are available.

For navigation please use offline map that does not require an internet connection.

The guidebook provides information on the majority of existing boulder problems and projects.

Taking into account high climbing potential of the area, we admit the necessity of further development and therefore we would be grateful for any relevant information on those problems and projects that have not been discovered so far.

## Key features

- Bouldering problem search
- Detailed problem descriptions
- Photos of climbing lines
- Offline map for navigation
- Search filters
- Spotting tips

## Recent user reviews (10 of 20)

All indexed reviews: https://appshunter.io/ios/app/triangular-lake/id910228492/reviews.md

### 5/5 — Yooo

*2025-03-29, version 2.1.3*

AHUENNO! Spasibo :)

### 5/5 — Удобное приложение

*2023-08-11, version 2.1.1*

Круто работает, быстро и супер удобно!

### 5/5 — Спасибо!

*2021-04-22, version 1.4.1*

Отличное приложение! Хочется обновлений :-)

### 5/5 — Все очень удобно

*2016-06-13, version 1.4*

Отличное приложение на айфон, но:
1.Многие проекты уже не проекты
2.Нашлось за последние годы много камней и новых трасс на старых камнях, которых нет!(
3. Слишком завышены категории. Многие 8б уже даже не 8а, а 7с-7с+
4. Добавляйте новые районы: Крым, Кавказ и прочие! Много скал, на которые хочется поехать вместе с этим приложением!!!

### 5/5 — Спасибо

*2016-05-03, version 1.4*

Спасибо большое, лучшее в своем роде приложение. Обновляйте и пополняйте трассы, пожалуйста.

### 5/5 — Фил

*2016-04-28, version 1.4*

Ребята, просто класс!🌞🙏🏻

### 5/5 — Отлично!

*2015-07-29, version 1.4*

Добавьте трудность!

### 5/5 — Супер!

*2015-06-30, version 1.4*

Мне нравится! Удобно, особенно если нет гайда под рукой:)

### 5/5 — Супер

*2014-10-24, version 1.3*

Отличное приложение! С нетерпением жду следующего сезона, чтобы полноценно его поюзать.

### 5/5 — Отзыв

*2014-10-23, version 1.3*

Приложение супер!!!

## Frequently asked questions about Triangular Lake

### What bouldering areas does Triangular Lake cover?

Triangular Lake provides information for two major bouldering areas: Lietlahti and Triangular Lake. Lietlahti is a newer area located 3 km from Triangular Lake.

### Can I use Triangular Lake without an internet connection?

Yes, the app features an offline map that does not require an internet connection, making it ideal for use in remote climbing locations.

### What kind of information is available for each bouldering problem?

For each problem, Triangular Lake offers its grade, danger level, recommended number of crash pads, spotting tips, starting position, and the line of the problem, often with accompanying photos.

### How does Triangular Lake help me find specific problems?

The app includes search filters to simplify the selection of problems. You can easily find boulders and sectors based on various criteria.

### Is Triangular Lake suitable for beginners?

The app provides detailed information including grades and spotting tips, which can be beneficial for beginners. However, it is primarily a guidebook for exploring existing problems.

### How often is Triangular Lake updated?

The app was last updated on October 17, 2025, with version 2.2.0. This indicates a commitment to maintaining and potentially expanding the information provided.

### Does Triangular Lake have ads?

No, Triangular Lake is ad-free, allowing for an uninterrupted user experience while planning your bouldering sessions.

### What devices can I use Triangular Lake on?

Triangular Lake is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users.

## Version history (last 5 releases)

### 2.2.0 — 2025-10-17

- iOS 26 support;

### 2.1.3 — 2024-08-19

- map improvements;

### 2.1.2 — 2023-10-07

- major ui update;
- map improvements;

### 2.1.1 — 2023-05-22

- minor map update;

### 2.1.0 — 2023-05-16

- Some map improvements;
- Boulder problems sorting on the search results screen;
- Favorites minor bug fix;

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## More apps by Mikhail Barinov

- [Dzhantugan](https://appshunter.io/ios/app/dzhantugan/id6443675518)

All apps by Mikhail Barinov: https://appshunter.io/developer/910228495

## Related topics

[oetzu](https://appshunter.io/ios/topics/oetzu)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*