Phil Property Solutions

17/12/2025

Contour Map Surveying Important Knowledge

05/12/2025

All Types of Surveying Accessories | Complete Guide for Surveyors

Are you a surveyor or civil engineer looking to understand all the essential tools used in surveying?
Here is a complete visual guide covering all major surveying accessories along with a detailed breakdown of the SAL-26 Auto Level Instrument.

🔧 Included Accessories:
✔️ Wooden Tripod
✔️ Aluminum Tripod
✔️ Prism Tripod
✔️ Prism Pole
✔️ Leveling Staff
✔️ Prism
✔️ Mini Prism
✔️ Prism Holder
✔️ Prism Target
✔️ Staff/Stadia Rod
✔️ And many more essential tools…

📐 SAL-26 Auto Level Complete Parts Explanation:

Eyepiece

Adjustable Focus K**b

Circular Bubble Level

Horizontal Bubble Level

Horizontal Locking Screw

Instrument Base

Tripod Leg Socket

Vertical Fine Adjustment K**b

Vertical Angle

Horizontal Angle Reading Window

Vertical Angle Scale

Tripod Locking System
…and all other labeled components for better understanding!

This image is specially designed for surveying students, site engineers, and field professionals who want a clear and easy explanation of surveying tools and instrument parts.

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05/12/2025

03/12/2025

How to read contour lines on topographic maps:

26/11/2025

26/11/2025

How to Read a Topographic Map

1. Contour Lines

Contour lines connect points of equal elevation. The spacing between lines shows slopesteepness—closer lines mean steeper terrain.

2. Index Contours

Every fifth contour line is bolder and labeled with its elevation, helping you understand the height faster.

3. Elevation Changes

Moving from one contour line to another means a change in elevation. The contour interval (printed onthe map) tells you how much elevation each line represents.

4. Reading Slopes

Wide-spaced lines = gentle slope. Tight-spaced lines = steep slope. Closed loops often indicate hills ordepressions.

5. Water Features

Blue lines and shapes represent rivers, lakes, and streams. Contour lines typically form a 'V' pointingupstream.

6. Colors on a Topographic Map

Green usually shows vegetation, white or light colors show open areas, and brown marks contour lines.

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26/11/2025

LAND SURVEYING & MAPPING?